1)Over-fitting过度拟合
1.A study on over-fitting in cost-sensitive learning代价敏感学习的过度拟合问题研究
2.Based on introduce common algorithms of classification, the thesis discusses the basic ideas of some important algorithms of decision tree, and analyses the shortcoming of ID3 algorithm such as: over-fitting, multi-value bias etc.本文在详细介绍各种常见的分类算法的基础上,论述了各种决策树算法的基本思想,分析了ID3算法存在的诸如过度拟合、多值偏向等问题,并做了以下研究工作:(1)利用对数的性质通过对信息熵公式变形,提出通过数组来存储有限个数的对数值来大幅度减少对数运算量的方法,并且通过模拟实验证明了该方法的有效性。
2)Excessive virtualization虚拟过度
3)overfitting过拟合
1.Uncertainty Relation Satisfied With Overfitting of BP Neural Network;BP网络过拟合满足的不确定关系式
2.Chaotic Pseudorandom Sequence Based on Overfitting Neural Network基于过拟合神经网络的混沌伪随机序列
3.This ignorance usually induces significant overfitting problems.化学、化工领域中多数数据处理问题属于数学中的“不适定问题”(ill-posed problem),而传统的化学计量学算法如线性和非线性回归,人工神经网络等忽略了这一特点,将其作为“适定问题”(well-posed problem)求解,是引发数据处理中“过拟合”问题的重要原因。
英文短句/例句
1.TESTING OF THE EFFICIENT MARKET HYPOTHESIS WITH THE DYNAMIC OVER-SIMULATED F STATISTIC METHODS;动态过拟合F统计量检验股市有效性
2.A Novel Coupling Technology of Complexation-Ultrafiltration and Its Models;络合—超滤耦合新技术及过程模拟研究
3.Numerical analysis of cladding process of Monel alloy/Cu explosive cladding barMonel合金/Cu爆炸复合棒复合过程数值模拟
4.A Goodness of Fit Test for General Power Law Process广义幂律过程的一个拟合优度检验法
5.Numerical simulation of impact process of 1420 aluminum alloy by hypervelocity projectiles高速弹丸撞击1420铝合金过程数值模拟
6.Numerical Simulation of Friction Welding Process of GH4169 Superalloy;GH4169合金摩擦焊接过程的数值模拟研究
7.The Wellbore Breakage Simulation by Mechanics/Chemistry Coupling Model;力—化耦合作用下井眼破坏过程模拟
8.Three-Dimensional Numerical Simulation on the Process of Carbide Wear in Surfacing Welding;硬质合金耐磨堆焊过程三维数值模拟
9.Numerical Simulation of Microstructure in Solidification of Al-7%Si Alloy;Al-7%Si合金凝固过程组织模拟
10.Simulation Study on Void Closing During 3-D Deformation;三维变形过程中空洞闭合的模拟研究
11.Complete Analysis of Slender Steel-Concrete Composite Columns by Numerical Simulation;钢-砼组合长柱全过程分析的数值模拟
12.Partners Selection in the Process of VE Construction;虚拟企业构建过程中的合作伙伴选择
13.Numerical Simulation for Primary Phase Precipitation Procession of Al-Si-Cu Alloy;Al-Si-Cu合金初生相析出过程数值模拟
14.Numerical Simulation of TA15 Titanium Alloy Components during TIG Welding;TA15钛合金构件TIG焊接过程的数值模拟
15.A Simulation of Keyhole Plasma Arc Welding in Aluminium Alloy;铝合金穿孔型等离子弧焊接过程模拟
16.FE Simulation of 2017 Alloy during the Semi-Solid Backward Extrusion;铝合金半固态反挤压过程的数值模拟
17.Numerical Simulation of AZ91 Cast Magnesium Alloy's Solidification ProcessAZ91铸造镁合金凝固过程数值模拟
18.Study on Numerical Simulation of Extrusion Forming for ZK60 Magnesium AlloysZK60镁合金挤压过程数值模拟研究
相关短句/例句
Excessive virtualization虚拟过度
3)overfitting过拟合
1.Uncertainty Relation Satisfied With Overfitting of BP Neural Network;BP网络过拟合满足的不确定关系式
2.Chaotic Pseudorandom Sequence Based on Overfitting Neural Network基于过拟合神经网络的混沌伪随机序列
3.This ignorance usually induces significant overfitting problems.化学、化工领域中多数数据处理问题属于数学中的“不适定问题”(ill-posed problem),而传统的化学计量学算法如线性和非线性回归,人工神经网络等忽略了这一特点,将其作为“适定问题”(well-posed problem)求解,是引发数据处理中“过拟合”问题的重要原因。
4)Over-fitting过拟合
1.Artificial Neural Networks Applied in the Analysis of Chemical Data(Ⅰ)──Approximation for Trend and Over-fitting;人工神经网络用于化学数据解析的研究（Ⅰ）──逼近规律与过拟合
2.An over-fitting parameter P is introduced;and the uncertainty relation is utilized for predicting river flow of Mingjiang River at Zipingpu station.通过类比信息传递过程中的一般测不准关系式,研究BP网络出现过拟合现象时,代表网络学习能力的权值改变量与反映网络推广能力的未参与训练的检验样本的辨识误差之间的关系。
3.For neural networks modeling,noise contained in measuring data can cause over-fitting phenomena and then decrease the model s precision.讨论了神经网络非线性建模时数据中的噪声成分造成的过拟合现象以及对模型精度的影响,针对RBF网络给出了2种提高建模精度的方法:建模数据预处理法和网络参数优化法。
5)over fitting过拟合
1.In the training of neural network the over fitting often appea.在神经网络训练的过程中 ,往往会出现过拟合的现象 ,给预测的结果带来不利的影响 ,为此在训练过程中 ,将样本随机地分离为训练集和测试集来防止这个问题。
6)fitting overshoot and undershoot拟合过冲
延伸阅读
非线性最小二乘拟合分子式：CAS号：性质：用最小二乘法拟合非线性方程。有些变量之间的非线性模型，通过变量变换可以化为线性模型，此称为外在线性。而有些变量之间的非线性模型，通过变量变换不能化为线性模型，通称为内在非线性。对于非线性模型y=f(ξ,θ)+ε，其残差平方和。S(θ)是θ的函数，当模型关于θ是非线性的，正规方程关于θ也是非线性的。基于使残差平方和s(θ)达到极小的原理求出θ的估计值，拟合非线性回归方程。
